A novel design of a high performance passive millimeter-wave imager for security

  • Weiwen Zhu*
  • , Yuejin Zhao
  • , Liquan Dong
  • , Xiaohua Liu
  • , Jingshui Zhang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

This paper describes a high performance of opto-mechanically scanned millimeter-wave imager for airport security. It employs a crank-rocker mechanism to generate a high speed line scanning, which produces a horizontal FOV (field of view) of 30°. Accompanied by a frame scanning mirror of ±18° in the vertical direction, it brings about a two-dimensional scan of the scene of 146cmx75cm which is 1 meter away from the system. By this scanning mechanism, we use a single channel of a 94GHz receiver to collect the radiation from a convex lens which acts as the focusing element. Then the output of the receiver is passed to an A/D converter and is displayed on a conventional PC. The new scanning arrangement meets these requirements and has been being developed into a high performance, low-cost, and compact prototype system which hopefully will meet the present and future needs for millimeter-wave and terahertz imaging.

Original languageEnglish
Title of host publicationInfrared, Millimeter Wave, and Terahertz Technologies
DOIs
Publication statusPublished - 2010
EventInfrared, Millimeter Wave, and Terahertz Technologies - Beijing, China
Duration: 18 Oct 201020 Oct 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7854
ISSN (Print)0277-786X

Conference

ConferenceInfrared, Millimeter Wave, and Terahertz Technologies
Country/TerritoryChina
CityBeijing
Period18/10/1020/10/10

Keywords

  • Crank-rocker mechanism
  • PMMW
  • Passive millimeter-wave imaging
  • Scanning

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